Base Station DRX Parameter Adjustment for Load Management
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Solution Overview
Problem
Existing base station devices face challenges in optimizing discontinuous reception (DRX) parameters to balance power consumption savings with communication efficiency, particularly during events that cause sudden increases in communication traffic, as current techniques fail to promptly adjust DRX settings to manage peak loads effectively.
Innovation Solution
A base station device with a processor that acquires communication load information, determines event occurrences, and adjusts DRX parameters for nearby stations based on impact range and time, instructing terminal devices to change DRX settings to improve call detection during events, thereby managing communication traffic and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the off-time of power supply in DRX is lengthened to save power consumption, then power consumption is reduced, but communication delay occurs because data reception is disabled
Solution Approach 1:
The patent applies dynamics by making DRX parameters changeable over time based on communication load conditions. The base station dynamically adjusts DRX parameters (such as drx-OnDurationTimer, drx-InactivityTimer, drx-LongCycle, drx-ShortCycle) according to measured communication load, transitioning from static to adaptive parameter settings that optimize both power saving and communication responsiveness under different load conditions
Solution Approach 2:
The patent implements parameter changes by modifying specific DRX parameters based on communication load thresholds. When load exceeds a threshold, the system changes parameters to extend monitoring duration or reduce off-time, thereby adjusting the balance between power consumption and communication delay without changing the fundamental DRX mechanism
2Device complexity
If DRX parameters are changed only when load difference exceeds a threshold value in a single eNB, then parameter adjustment is simple, but appropriate intervals cannot be set when communication traffic concentrates immediately after an event
Solution Approach 1:
The patent introduces an intermediary mechanism by using neighboring eNB load information as a trigger for parameter changes. Instead of relying solely on local load thresholds, the system monitors communication load in neighboring eNBs and initiates DRX parameter changes when significant load increases are detected in the vicinity, providing earlier and more reliable parameter adjustment
Solution Approach 2:
The patent applies preliminary action by proactively changing DRX parameters based on anticipated load increases from neighboring eNBs. When communication load exceeds thresholds in neighboring eNBs, the system pre-adjusts parameters before the load surge reaches the monitored eNB, ensuring appropriate DRX settings are in place before traffic concentration occurs
3Reliability
If the frequency of measuring load is increased to change parameters at appropriate timing for irregular communication traffic, then parameter responsiveness is improved, but base station load increases due to frequent calculation
Solution Approach 1:
The patent merges the load measurement function across multiple eNBs by having neighboring base stations share their load information. Instead of each eNB independently and frequently measuring its own load, the system combines load data from multiple sources, allowing less frequent measurements while maintaining reliable detection of communication patterns through collective information
Data Source
AI summary
A base station device includes a processor. The processor is configured to acquire first information on a first communication load of the base station device. The processor is configured to determine, on basis of the first information, whether a first event occurs. The processor is configured to acquire, upon determining that the first event occurs, second information on second communication loads of other base station devices located within a predetermined range from the base station device. The processor is configured to determine an impact range and an impact time of the first event on basis of the first information and the second information. The processor is configured to instruct terminal devices within the impact range to change, during the impact time, a setting of discontinuous reception from a normal setting to a first setting for easier detection of an incoming call.